Annotations: 2MRI

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PCI	e2mriA1	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PCI	ECOD (1.6)
A	KOG2908_N	e2mriA2	A: alpha superhelices	X: Repetitive alpha hairpins	H: ARM repeat (From Topology)	T: ARM repeat	F: KOG2908_N	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF22037	PSD13 N-terminal repeats (PSD13_N)	PSD13 N-terminal repeats	-	Repeat
A	PF01399	PCI domain (PCI)	PCI domain	This domain has also been called the PINT motif (Proteasome, Int-6, Nip-1 and TRIP-15) [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	26S proteasome regulatory subunit RPN9	structural molecule activity	catabolic process proteolysis involved in protein catabolic process primary metabolic process protein catabolic process macromolecule catabolic process modification-dependent macromolecule catabolic process modification-dependent protein catabolic process proteolysis ubiquitin-dependent protein catabolic process metabolic process cellular process macromolecule metabolic process protein metabolic process cellular component organization catabolic process proteolysis involved in protein catabolic process primary metabolic process protein catabolic process macromolecule catabolic process modification-dependent macromolecule catabolic process modification-dependent protein catabolic process proteolysis ubiquitin-dependent protein catabolic process metabolic process cellular process macromolecule metabolic process protein metabolic process cellular component organization cellular component biogenesis proteasome assembly cellular component assembly protein-containing complex organization protein-containing complex assembly cellular component organization or biogenesis proteasomal protein catabolic process proteasome-mediated ubiquitin-dependent protein catabolic process	protein-containing complex catalytic complex peptidase complex proteasome complex endopeptidase complex intracellular protein-containing complex cellular anatomical structure intracellular anatomical structure cytoplasm cytosol proteasome regulatory particle proteasome regulatory particle, lid subcomplex proteasome accessory complex intracellular organelle protein-containing complex catalytic complex peptidase complex proteasome complex endopeptidase complex intracellular protein-containing complex cellular anatomical structure intracellular anatomical structure cytoplasm cytosol proteasome regulatory particle proteasome regulatory particle, lid subcomplex proteasome accessory complex intracellular organelle organelle membraneless organelle intracellular membraneless organelle proteasome storage granule membrane-bounded organelle nucleus intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR054179	PSD13, N-terminal	Domain
A	IPR036390	Winged helix DNA-binding domain superfamily	Homologous Superfamily
A	IPR035298	26S Proteasome non-ATPase regulatory subunit 13	Family
A	IPR000717	Proteasome component (PCI) domain	Domain
A	IPR040798	Rpn9, C-terminal helix	Domain

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.